Purchased an onk 807 3 weeks ago.
Had an initial internet problem where the unit would not connect.Unplugged and and re-plugging fixed the problem.
Well,its doing it again only this time unplugging is not helping

Problem #2,was able to put unit in passthrough,put unit in standby mode and watch cable T.V. without the receiver being on.Well,it won't do that anymore.If I want to watch cable T.V.without the receiver being on I have to disconnect HDMI out and plug it directly into the TWC dvr.T.V. says check signal cable.All hdmi cables are good.
Problem#3,certain items in set-up menu are greyed out.
Remote controller setup,#8 on the menu list
In speaker setup,#4 level calibration.
In hardware setup#5 network(obvious,no connection being made)#6 firmware update(again,obvious,noconnect)My ps3 and pc are both hooked to the wired router and work fine.
I've read on other posts(after I purchased

)that it might not be a good feature to have passthrough accessible in standby.I.E.,premature failure.
I only have 6 days left to be able to return the unit.
Any help would be greatly appreciated.
Thanks in advance for any help.
Regards,Len
P.S.,unit does not run really hot,just warm to the touch.